f1e0b83e7bPR-URL: https://github.com/nodejs/node/pull/61898 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Filip Skokan <panva.ip@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
// Copyright 2026 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --turbolev --turbofan
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function push_arr(arr, x, y) {
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arr.push(x, y);
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}
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%PrepareFunctionForOptimization(push_arr);
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let smi_arr = [1, /*hole*/, 2];
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let obj_arr = [ {}, /*hole*/, "ab" ];
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push_arr(smi_arr, 42, 43);
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assertEquals([1, /*hole*/, 2, 42, 43], smi_arr);
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push_arr(obj_arr, [], "c");
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assertEquals([{}, /*hole*/, "ab", [], "c"], obj_arr);
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// Feedback collection of some transitions is a bit buggy, so re-running
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// feedback collection once more.
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smi_arr = [1, /*hole*/, 2];
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obj_arr = [ {}, /*hole*/, "ab" ];
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push_arr(smi_arr, 42, 43);
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assertEquals([1, /*hole*/, 2, 42, 43], smi_arr);
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push_arr(obj_arr, [], "c");
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assertEquals([{}, /*hole*/, "ab", [], "c"], obj_arr);
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%OptimizeFunctionOnNextCall(push_arr);
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smi_arr = [1, /*hole*/, 2];
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obj_arr = [ {}, /*hole*/, "ab" ];
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push_arr(smi_arr, 42, 43);
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assertEquals([1, /*hole*/, 2, 42, 43], smi_arr);
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push_arr(obj_arr, [], "c");
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assertEquals([{}, /*hole*/, "ab", [], "c"], obj_arr);
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// Storing a non-smi into a Smi array will deopt.
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smi_arr = [1, /*hole*/, 2];
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push_arr(smi_arr, 17, "x");
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assertEquals([1, /*hole*/, 2, 17, "x"], smi_arr);
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assertUnoptimized(push_arr);
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